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Monday, February 18, 2008

One day the temperature is warm and caressing and billowy white clouds race across the sky shouting, “spring is coming, spring is coming!” The next day it snows. This tug of war between winter and spring has just begun and we will not see the end of it until the last feeble sputters of snow in late May. And then, suddenly, it will be summer.

Wednesday, February 06, 2008

Last month I attended ProGreen Expo here in Denver, a week of classes and seminars (plus a big trade show) for landscape professionals. One of the classes I attended was an overview of irrigation system basics and, more importantly, water management practices. It was exciting to get some hard data that I can now apply to a concept I’ve been familiar with for many years now: water cycling.

The basic idea of cycle and soak irrigation is to match the precipitation rates (water output) of your sprinkler to the infiltration (absorption) rates of your soil. In soils that absorb water slowly (or if you are watering on a slope), you will have to apply water for shorter periods of time to prevent runoff (and waste). Multiple water applications (cycling) may then be necessary to meet the water needs of the plants. Here is the data that gives us a clearer idea of how long to run those sprinklers before runoff occurs:

Saturday, February 02, 2008

What: Passion to Action – Professional Practices for Now and in the Future.The Front Range Sustainable Landscaping Coalition presents a full day of inspiration and information about sustainable landscape design and construction.